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Search for : (n*2^n-1)?


Rank
Probable prime
Digits (> 10000)
Who?
When?
4331(497167*2^497167-1)/70975149664Anonymous04/2025
4344(496423*2^496423-1)/223573149439Anonymous04/2025
67901(119574*2^119574-1)/(5*619)35997Jens K. Andersen02/2009
69279(115663*2^115663-1)/43934821Jens K. Andersen02/2009
70779(109131*2^109131-1)/732856Donovan Johnson10/2006
70821(108932*2^108932-1)/7332795Donovan Johnson10/2006
71002(108176*2^108176-1)/133728023579975532555Donovan Johnson10/2006
71232(107188*2^107188-1)/179094332266Donovan Johnson10/2006
71336(106825*2^106825-1)/389843303796526564932144Donovan Johnson10/2006
71642(105931*2^105931-1)/169061032237428599306229655931867Donovan Johnson10/2006
72210(104013*2^104013-1)/18531314Donovan Johnson09/2006
72813(101988*2^101988-1)/9490730702Donovan Johnson09/2006
145803(101026*2^101026-1)/330417Donovan Johnson09/2006
151178(98168*2^98168-1)/1219929553Donovan Johnson09/2006
152687(93449*2^93449-1)/137415984455728124Donovan Johnson09/2006
154617(88641*2^88641-1)/3391926685Donovan Johnson09/2006
156221(86365*2^86365-1)/1926003Donovan Johnson09/2006
156897(85310*2^85310-1)/428708766676925674Donovan Johnson09/2006
157815(83747*2^83747-1)/41809525210Donovan Johnson09/2006
158757(82454*2^82454-1)/93524824Donovan Johnson09/2006
159054(82101*2^82101-1)/37028903258148724706Donovan Johnson09/2006
159729(81118*2^81118-1)/40824324419Donovan Johnson09/2006
160838(79436*2^79436-1)/898733786523908Donovan Johnson03/2005
161959(78409*2^78409-1)/216742389744875890172103123585Donovan Johnson03/2005
162364(77814*2^77814-1)/21957623322523418Donovan Johnson03/2005
162778(77216*2^77216-1)/12552766032523239Donovan Johnson03/2005
164405(74930*2^74930-1)/3824733267863922548Donovan Johnson03/2005
164598(74662*2^74662-1)/26332412122472Donovan Johnson03/2005
165092(73985*2^73985-1)/297347565922268Donovan Johnson03/2005
166863(71695*2^71695-1)/19909801948162062539660358473790823921552Donovan Johnson03/2005
169898(68544*2^68544-1)/1003923649592026720623Donovan Johnson03/2005
169915(68525*2^68525-1)/1038144181784507720617Donovan Johnson03/2005
193292(67209*2^67209-1)/402676192582920225Donovan Johnson03/2005
199232(66563*2^66563-1)/193870648230920030Donovan Johnson03/2005
204453(65717*2^65717-1)/1436119784Donovan Johnson03/2005
205548(63782*2^63782-1)/180611407270319193Donovan Johnson03/2005
205930(63178*2^63178-1)/20533754278025894624526319000Donovan Johnson03/2005
206039(62956*2^62956-1)/935385458771260636518938Donovan Johnson03/2005
207361(61237*2^61237-1)/4483718435Donovan Johnson03/2005
209766(59200*2^59200-1)/136519505193917814Donovan Johnson03/2005
211044(58103*2^58103-1)/979923930343786593317477Donovan Johnson03/2005
211166(58010*2^58010-1)/348296891045372031197317446Donovan Johnson03/2005
211700(57550*2^57550-1)/33061741710122717315Donovan Johnson03/2005
212115(57176*2^57176-1)/517216Donovan Johnson01/2005
213809(55872*2^55872-1)/5465916820Donovan Johnson03/2005
214833(55225*2^55225-1)/26788712496822062169716609Donovan Johnson03/2005
216583(54086*2^54086-1)/916308573697716274Donovan Johnson03/2005
221192(52267*2^52267-1)/64401004670577515724Donovan Johnson03/2005
224699(51573*2^51573-1)/1587140533100378515514Donovan Johnson03/2005
233732(49313*2^49313-1)/103514847Donovan Johnson03/2005
233768(49293*2^49293-1)/514843Donovan Johnson03/2005
233829(49314*2^49314-1)/366170419992514838Donovan Johnson03/2005
237405(48179*2^48179-1)/92117714503Donovan Johnson03/2005
246327(44491*2^44491-1)/63618191313389Donovan Johnson03/2005
248632(43590*2^43590-1)/367243113120Donovan Johnson03/2005
249849(43075*2^43075-1)/111983171312963Donovan Johnson03/2005
252891(41799*2^41799-1)/2401541312580Donovan Johnson03/2005
253157(41698*2^41698-1)/6242972712550Donovan Johnson03/2005
259029(39712*2^39712-1)/101150902022372111945Donovan Johnson03/2005
261090(38844*2^38844-1)/924475311691Donovan Johnson03/2005
261946(38529*2^38529-1)/33844311598Donovan Johnson03/2005
263391(37928*2^37928-1)/42241060612111411Donovan Johnson03/2005
266820(36560*2^36560-1)/362311007Donovan Johnson01/2005
279432(34671*2^34671-1)/1359091387910432Donovan Johnson03/2005
280291(34420*2^34420-1)/2246715910359Donovan Johnson03/2005
282052(34133*2^34133-1)/2311510276Donovan Johnson03/2005

Total : 66 PRP(s)



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Created by  Henri Lifchitz & Renaud Lifchitz : October, 26 2000, last modification: January, 14 2026 14:59 (Time in France)